The following factors shall be used to determine the classifications of various hazard overlay zones and their constraints to building and development upon them.
(A) Class A lands: no hazard. Class A lands are those which have no constraints as defined by this code. The underlying zone and, if applicable, other overlay zones in which the parcel is located, may limit development.
(B) Class B lands: steep slopes. Class B lands are those which lie on slopes greater than 15%. Class B lands shall require a site review report as described under § 153.094.
(C) Class C lands: soil limitations.
(1) Class C lands are those that have hazardous conditions based on soil characteristics identified in the county’s resource conservation service soil survey, but may be on slopes of less than 15%. These soils are listed in the city’s comprehensive plan’s soil inventory. Class C hazards may include, but are not limited to: shrink/swell; slope stability failures or ponding; or poor drainage. Class C lands also include any existing unstable landforms, such as areas of evident slumps, slides, ground creep, debris flows, seeps and springs or other groundwater manifestations that would have an impact on soil stability. Class C lands do not include those that are subject to flooding or are found within the floodplain as identified in the comprehensive plan. Class C lands shall require a site review report as described under § 153.094.
(2) The above classifications are cumulative in their effect and, if a parcel of land falls under two or more classifications, it shall be subject to the regulations of each classification. Those restrictions applied shall pertain to the entire parcel on which development occurs.
(Ord. 1267, passed 1-3-2012)